李凡可,徐峰,景然,刘文义,任璇,冉启科

• 1:陕西理工大学材料科学与工程学院

摘要(Abstract)：

利用选区激光熔化(SLM)技术制备了AlCoCrFeNi_(2.1)高熵合金，研究了激光功率和扫描速度对其组织及摩擦磨损性能的影响。利用X射线衍射(XRD)、扫描电镜(SEM)、能谱仪(EDS)、显微维氏硬度计和摩擦磨损试验机等研究了合金的物相、微观组织、硬度及摩擦磨损性能。结果表明：AlCoCrFeNi_(2.1)高熵合金由BCC相与FCC相双相固溶体构成；合金的显微硬度及耐磨损性能在激光功率为350 W、扫描速度为500 mm/s时达到最佳，显微硬度值达510.7 HV0.1,平均摩擦系数、磨损量和磨损率分别为0.4015、0.0048 g和0.3604×10~(-5) g·N~(-1)·m~(-1)。

关键词(KeyWords)： 高熵合金;选区激光熔化;耐磨性

Abstract:

Keywords:

基金项目(Foundation): 陕西省教育厅产业化(24JC022);; 陕西省教育厅青年创新团队(24JP036)

作者(Author): 李凡可,徐峰,景然,刘文义,任璇,冉启科

DOI: 10.13289/j.issn.1009-6264.2025-0139

参考文献(References)：

• [1] Yeh J W,Chen S K,Lin S J,et al.Nanostructured high-entropy alloys with multiple principal elements:Novel alloy design concepts and outcomes[J].Advanced Engineering Materials,2004,6(5):299-303.
• [2] Gwalani B,Gorsse S,Choudhuri D,et al.Tensile yield strength of a single bulk Al0.3CoCrFeNi high entropy alloy can be tuned from 160 MPa to 1800 MPa[J].Scripta Materialia,2019,162:18-23.
• [3] Zhang M,Zhou X L,Yu X N,et al.Synthesis and characterization of refractory TiZrNbWMo high-entropy alloy coating by laser cladding[J].Surface and Coatings Technology,2017,311:321-329.
• [4] 苗振旺，祝夫文，刘琪.CoCrFeNiCuTix高熵合金的微观组织与耐腐蚀性能研究[J].粉末冶金技术，2020,38(1):10-17.MIAO Zhen-wang,ZHU Fu-wen,LIU Qi.Study on microstructure and corrosion resistance of CoCrFeNiCuTix high-entropy alloy[J].Powder Metallurgy Technology,2020,38(1):10-17.
• [5] Yang X Q,Liu Y,Ye J W,et al.Enhanced mechanical properties and formability of 316L stainless steel materials 3D-printed using selective laser melting[J].International Journal of Minerals,Metallurgy and Materials,2019,26:1396-1404.
• [6] 邱翔宇，穆永坤，贾延东.选区激光熔化制备高熵合金的研究进展[J].金属加工(热加工),2025(1):1-12.QIU Xiang-yu,MU Yong-kun,JIA Yan-dong.Research progress in preparation of high entropy alloys by selective laser melting[J].MW Metal Forming,2025(1):1-12.
• [7] Brif Y,Thomas M,Todd I.The use of high-entropy alloys in additive manufacturing[J].Scripta Materialia,2015,99:93-96.
• [8] 徐勇勇，孙琨，邹增琪，等.选区激光熔化制备Al0.5CoCrFeNi高熵合金的工艺参数及组织性能[J].西安交通大学学报，2018,52(1):151-157.XU Yong-yong,SUN Kun,ZOU Zeng-qi,et al.Process parameters,microstructure and properties of Al0.5CoCrFeNi high entropy alloy prepared by selective laser melting[J].Journal of Xi’an Jiaotong University,2018,52(1):151-157.
• [9] 陶靖，刘桐，黄仲佳，等.扫描速度对选区激光熔化高强Al-Mg-Sc-Zr合金组织与性能的影响[J].安徽工程大学学报，2023,38(5):9-18.TAO Jing,LIU Tong,HUANG Zhong-jia,et al.Effect of scanning speed on microstructure and properties of selective laser melting high strength Al-Mg-Sc-Zr alloy[J].Journal of Anhui Polytechnic University,2023,38(5):9-18.
• [10] 张国庆，杨永强，林辉，等.激光选区熔化成型CoCrMo合金摩擦学性能研究[J].中国激光，2016,43(8):173-182.ZHANG Guo-qing,YANG Yong-qiang,LIN Hui,et al.Study on tribology performance of CoCrMo alloy parts manufactured by selective laser melting[J].Chinese Journal of Lasers,2016,43(8):173-182.
• [11] 吴佳豪，徐峰，王欢乐，等.基于SLM成形的TC4钛合金点阵结构设计及压缩行为研究[J].稀有金属材料与工程，2024,53(7):1953-1961.WU Jia-hao,XU Feng,WANG Huan-le,et al.Design of lattice structures based on SLM for TC4 titanium alloy and research on their compression behavior[J].Rare Metal Materials and Engineering,2024,53(7):1953-1961.
• [12] 冉启科，徐峰，王波，等.激光功率对AlCoCrFeNi2.1高熵合金涂层组织与性能影响[J].材料热处理学报，2024,45(8):183-194.RAN Qi-ke,XU Feng,WANG Bo,et al.Effect of laser power on microstructure and properties of AlCoCrFeNi2.1 high entropy alloy coating[J].Transactions of Materials and Heat Treatment,2024,45(8):183-194.
• [13] Li X X,Guo Q L,Chen L Y,et al.Quantitative investigation of gas flow,powder-gas interaction,and powder behavior under different ambient pressure levels in laser powder bed fusion[J].International Journal of Machine Tools and Manufacture,2021,170:103797.
• [14] 库岩涛，邱贺方，袁晓静，等.选区激光熔化技术处理AlCoCrFeNi2.1共晶高熵合金的力学性能及耐腐蚀性能[J].火箭军工程大学学报，2024,38(6):105-115.KU Yan-tao,QIU He-fang,YUAN Xiao-jing,et al.Mechanical properties and corrosion resistance of AlCoCrFeNi2.1 eutectic high-entropy alloy processed by selective laser melting technology[J] Journal of Rocket Force University of Engineering,2024,38(6):105-115.
• [15] 杨立军，李翼虎，朱阳洋，等.激光选区熔化制造工艺参数对TC4钛合金成型件致密度和硬度的影响规律[J].应用激光，2022,42(4):55-62.YANG Li-jun,LI Yi-hu,ZHU Yang-yang,et al.Study on the influence of process parameters on the densification and surface hardness of TC4 titanium alloy formed parts by selective laser melting[J].Applied Laser,2022,42(4):55-62.
• [16] 王帅.AlCoCrFeNi2.1异质共晶高熵合金的制备与组织性能研究[D].天津：天津大学，2022.WANG Shuai.Manufacture,microstructure and mechanical properties of heterogeneous AlCoCrFeNi2.1 eutectic high entropy alloy[D].Tianjin:Tianjin University,2022.
• [17] 侯庆玲.SLM成形块体Al0.5CoCrFeNi高熵合金的微观组织结构及摩擦磨损行为研究[D].太原：太原科技大学，2023.HOU Qing-ling.Study on microstructure and friction behavior of bulk Al0.5CoCrFeNi high entropy alloy prepared SLM[D].Taiyuan:Taiyuan University of Science and Technology,2023.
• [18] 黄晔.Al-Mg合金激光小孔焊镁元素蒸发行为及对焊接过程稳定性的影响机制[D].上海：上海交通大学，2021.HUANG Ye.Study on evaporation behaviour of magnesium element and its effects on welding stability in laser keyhole welding Al-Mg alloy[D].Shanghai:Shanghai Jiao Tong University,2021.
• [19] Huang J,Luo F,Zhao Y,et al.Preparation of AlCoCrFeNi/W-TiC HEA composite coating by laser cladding[J].Materials Today Communications,2024,39:108677.
• [20] Zhang D D,Li Q,Sun R,et al.Effect of Mn addition on microstructure and corrosion behavior of AlCoCrFeNi high-entropy alloy[J].Intermetallics,2024,167:108236.
• [21] Nigon G N,Burkan I O,Somayeh P.The effect of annealing on the selective laser melting of 2205 duplex stainless steel:Microstructure,grain orientation,and manufacturing challenges[J].Optics and Laser Technology,2021,134:106643.
• [22] Luo F Y,Shi W Q,Xiong Z Y,et al.Microstructure and properties analysis of AlCoCrFeNi high-entropy alloy/iron-based amorphous composite coatings prepared by laser cladding[J].Journal of Non-Crystalline Solids,2024,624:122732.
• [23] 杨行，王华，徐峰，等.激光功率对FeCoNiCrMo高熵合金熔覆层组织与性能的影响[J].材料热处理学报，2023,44(4):157-168.YANG Hang,WANG Hua,XU Feng,et al.Effect of laser power on microstructure and properties of FeCoNiCrMo high entropy alloy cladding layer[J].Transactions of Materials and Heat Treatment,2023,44(4):157-168.
• [24] 瓦伦丁·波波夫.接触力学与摩擦学的原理及其应用[M].北京：清华大学出版社，2011.
• [25] 王石，王琳，尹晓伟.激光熔覆FeCoCrNiNb高熵合金涂层组织及耐磨性能[J].稀有金属材料与工程，2023,52(4):1483-1489.WANG Shi,WANG Lin,YIN Xiao-wei.Microstructure and wear behavior of laser cladding FeCoCrNiNb high entropy alloy coating[J].Rare Metal Materials and Engineering,2023,52(4):1483-1489.
• [26] 时晓宇，温道胜，王守仁，等.激光熔覆灰铸铁制动盘Fe-Ni-Cr梯度复合涂层微观组织及高温摩擦磨损性能研究[J].中国激光，2022,49(2):188-199.SHI Xiao-yu,WEN Dao-sheng,WANG Shou-ren,et al.Microstructures and high-temperature friction and wear properties of laser cladded Fe-Ni-Cr gradient composite coating for brake disc[J].Chinese Journal of Lasers,2022,49(2):188-199.

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